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Finding the Third Proportional to 9,072 and 13,875.75

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Solution

The third proportional to 9,072 and 13,875.75 is: 21,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072 : 13,875.75 = 13,875.75 : x
  2. Step 2: Convert to fraction form
    9,072/13,875.75 = 13,875.75/x
  3. Step 3: Cross multiply
    9,072x = 13,875.75 × 13,875.75
  4. Step 4: Simplify right side
    9,072x = 192,536,438.06
  5. Step 5: Solve for x
    x = 192,536,438.06/9,072
  6. Step 6: Final answer
    x = 21,223.15

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.